Automobile rear bumper



FIG. 1 is a rear perspective view of an automobile rear bumper showing my new design;

FIG. 2 is a front perspective view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left-side elevation view thereof;

FIG. 5 is a front elevation view thereof;

FIG. 6 is a right-side elevation view thereof; and,

FIG. 7 is a top plan view thereof. 

The ornamental design for an automobile rear bumper, as shown and described. 